Fig. 1

A 25-year-old female with acute abdomen and clinical signs of intestinal obstruction. (a) High resolution ultrasound using linear array transducer showing intestinal ascariasis, note distended fluid filled alimentary canal of the ascaris (thick white arrow), the “inner tube sign”, (b) same patient showing multiple ring like shadows (thin white arrows), some with target appearance (thick white arrow) on transverse section of the intestinal lumen indicating bag of worms, (c) “Bag of worms” in a long section (thin white arrow) and (d) PA erect X-ray abdomen of this patient showing tubular soft densities suggestive of ascariasis (thick black arrow)